File:ONeil Cylindrical Space Colony.png

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ONeil_Cylindrical_Space_Colony.png(720 × 450 pixels, file size: 706 KB, MIME type: image/png)

Envisioned by Gerard O'Neil in the late 60s and early 70's, cylindrical space colonies would spin on their axis to generate gravity.

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current06:23, 25 March 2023
Error creating thumbnail: File missing
720 × 450 (706 KB)Mike (talk | contribs)

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